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Duality-invariant class of two-dimensional field theories

Sfetsos, K (1999) Duality-invariant class of two-dimensional field theories Nucl.Phys. B, 561. pp. 316-340.

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Abstract

We construct a new class of two-dimensional field theories with target spaces that are finite multiparameter deformations of the usual coset G/H-spaces. They arise naturally, when certain models, related by Poisson-Lie T-duality, develop a local gauge invariance at specific points of their classical moduli space. We show that canonical equivalences in this context can be formulated in loop space in terms of parafermionic-type algebras with a central extension. We find that the corresponding generating functionals are non-polynomial in the derivatives of the fields with respect to the space-like variable. After constructing models with three- and two-dimensional targets, we study renormalization group flows in this context. In the ultraviolet, in some cases, the target space of the theory reduces to a coset space or there is a fixed point where the theory becomes free.

Item Type: Article
Authors :
NameEmailORCID
Sfetsos, Kk.sfetsos@surrey.ac.ukUNSPECIFIED
Date : 27 April 1999
Identification Number : https://doi.org/10.1016/S0550-3213(99)00485-X
Uncontrolled Keywords : hep-th, hep-th
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:27
Last Modified : 17 May 2017 12:27
URI: http://epubs.surrey.ac.uk/id/eprint/835409

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